1 files changed, 81 insertions, 0 deletions
diff --git a/libloragw/tst/test_loragw_spi.c b/libloragw/tst/test_loragw_spi.c
new file mode 100644
index 0000000..0eae55d
--- /dev/null
+++ b/libloragw/tst/test_loragw_spi.c
@@ -0,0 +1,81 @@
+/*
+ / _____)             _              | |
+( (____  _____ ____ _| |_ _____  ____| |__
+ \____ \| ___ |    (_   _) ___ |/ ___)  _ \
+ _____) ) ____| | | || |_| ____( (___| | | |
+(______/|_____)_|_|_| \__)_____)\____)_| |_|
+    Š2013 Semtech-Cycleo
+
+Description:
+	Minimum test program for the loragw_spi 'library'
+	Use logic analyser to check the results.
+*/
+
+
+/* -------------------------------------------------------------------------- */
+/* --- DEPENDANCIES --------------------------------------------------------- */
+
+#include <stdint.h>
+#include <stdio.h>
+
+#include "loragw_spi.h"
+
+/* -------------------------------------------------------------------------- */
+/* --- PRIVATE MACROS ------------------------------------------------------- */
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+
+/* -------------------------------------------------------------------------- */
+/* --- PRIVATE CONSTANTS ---------------------------------------------------- */
+
+#define BURST_TEST_SIZE 2500 /* >> LGW_BURST_CHUNK */
+#define TIMING_REPEAT	1	 /* repeat transactions multiple times for timing characterisation */
+
+/* -------------------------------------------------------------------------- */
+/* --- MAIN FUNCTION -------------------------------------------------------- */
+
+int main(int argc, char **argv)
+{
+	int i;
+	void *spi_target = NULL;
+	uint8_t data = 0;
+	uint8_t dataout[BURST_TEST_SIZE];
+	uint8_t datain[BURST_TEST_SIZE];
+	
+	for (i = 0; i < BURST_TEST_SIZE; ++i) {
+		dataout[i] = 0x30 + (i % 10); /* ASCCI code for 0 -> 9 */
+		datain[i] = 0x23; /* garbage data, to be overwritten by received data */
+	}
+	
+	printf("Beginning of test for loragw_spi.c\n");
+	lgw_spi_open(&spi_target);
+	
+	/* normal R/W test */
+	for (i = 0; i < TIMING_REPEAT; ++i)
+		lgw_spi_w(spi_target, 0xAA, 0x96);
+	for (i = 0; i < TIMING_REPEAT; ++i)
+		lgw_spi_r(spi_target, 0x55, &data);
+	
+	/* burst R/W test, small bursts << LGW_BURST_CHUNK */
+	for (i = 0; i < TIMING_REPEAT; ++i)
+		lgw_spi_wb(spi_target, 0x55, dataout, 16);
+	for (i = 0; i < TIMING_REPEAT; ++i)
+		lgw_spi_rb(spi_target, 0x55, datain, 16);
+	
+	/* burst R/W test, large bursts >> LGW_BURST_CHUNK */
+	for (i = 0; i < TIMING_REPEAT; ++i)
+		lgw_spi_wb(spi_target, 0x5A, dataout, ARRAY_SIZE(dataout));
+	for (i = 0; i < TIMING_REPEAT; ++i)
+		lgw_spi_rb(spi_target, 0x5A, datain, ARRAY_SIZE(datain));
+	
+	/* last read (blocking), just to be sure no to quit before the FTDI buffer is flushed */
+	lgw_spi_r(spi_target, 0x55, &data);
+	printf("data received (simple read): %d\n",data);
+	
+	lgw_spi_close(spi_target);
+	printf("End of test for loragw_spi.c\n");
+	
+	return 0;
+}
+
+/* --- EOF ------------------------------------------------------------------ */